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  • 1
    Electronic Resource
    Electronic Resource
    AN ACCURATE GENERAL IODIMETRIC METHOD FOR THE QUANTITATIVE DETERMINATION OF THE CARBONYL GROUP IN ORGANIC COMPOUNDS (1925)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 47 (1925), S. 2983-2988 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01689a020
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    AN INVESTIGATION OF SOME PROPERTIES OF PHENYLHYDRAZINE AND FACTORS AFFECTING HYDRAZONE FORMATION (1925)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 47 (1925), S. 2976-2983 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01689a019
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Toy model for gravitational kinks (1992)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 1437-1444 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The homotopy properties of gravity in 1+1 dimensions are shown to imply the existence of structures analogous to the Finkelstein–Misner kinks of general relativity. A formalism is developed for the construction of kink metrics and a number of simple kink solutions for the (1+1)-dimensional equations are presented−including an n-kink solution that is locally transformable to the usual de Sitter solution and a one-kink solution that is locally transformable to one of the standard FLRW solutions. The relationship between the kink count and the hypersurface decomposition of the space-time manifold is explained in detail.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529720
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Kink metrics in (2+1)-dimensional space-time (1992)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 33 (1992), S. 256-266 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: A homotopy classification scheme is developed for Lorentz metrics that are defined on (2+1)-dimensional space-times of various topologies. The "kink number,'' in the sense of the Finkelstein–Misner kink number in higher dimensions, is discussed, and examples are presented of kink metrics that satisfy the Einstein field equations in 2+1 dimensions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.529958
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    The Asteroids (1978)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Astronomy and Astrophysics 16 (1978), S. 33-75 
    Details
    ISSN: 0066-4146
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.aa.16.090178.000341
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  • 6
    Electronic Resource
    Electronic Resource
    Pre-operative intramuscular ranitidine and cimetidine (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 40 (1985), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A controlled trial was carried out on 120 healthy patients presenting for elective surgery. The patients were divided randomly into three groups, which received respectively, 50 mg ranitidine, 100 mg ranitidine, or 300 mg cimetidine intramuscularly at least 45 minutes before operation. Following induction of anaesthesia, a nasogastric tube was passed, the stomach contents aspirated and analysed for volume and pH. Thirteen per cent of cimetidine-treated patients had a gastric pH of 2.5 or less, compared to 8% of those given ranitidine 50 mg and 3% of those given ranitidine 100 mg; however, these differences were not statistically significant. No side effects attributable to the administration of either drug were observed. It is concluded that intramuscular administration of ranitidine or cimetidine is an effective method of reducing the number of patients at risk of acid aspiration during anaesthesia. However, neither drug eliminates the risk of acid aspiration in all patients. and thus careful anaesthetic technique to protect the airway remains essential.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1985.tb10749.x
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  • 7
    Electronic Resource
    Electronic Resource
    Degradation of mobility in neutron irradiated GaAs by the increased scattering from multiply charged ionized defects (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 3734-3739 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Mobility changes were measured at temperatures from 15 to 305 K in n-GaAs van der Pauw samples irradiated by fast reactor neutrons. The inverse mobility values, obtained from the variable temperature Hall measurements were fitted using the relation μ−1=AT−3/2+BT3/2. The inverse mobility was found to increase as a result of neutron irradiations over the whole range of temperature; the increase is attributed to the increased scattering from neutron induced charged defects. The values of A found by the least square fitting were used to estimate the increased scattering effect from neutron-induced ionized defects after each step of irradiation. It is concluded that in order to explain the experimental results presented here, the creation of multiply charged defects must be considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.352904
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  • 8
    Electronic Resource
    Electronic Resource
    Carrier removal and changes in electrical properties of neutron irradiated GaAs (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 4931-4937 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The changes in electrical properties of n-GaAs as a result of irradiations with fast neutrons have been studied. Epitaxial layers doped with Si at concentrations in the range 1.35×1015 to 1.599×1016 cm−3 were irradiated with reactor neutron fluences up to 1.31×1015 cm−2. When the changes in carrier concentration, Hall mobility, and resistivity were more than 25% of their initial values, nonlinear dependence on neutron fluence was apparent. New theory is proposed which explains the changes in electrical properties in terms of rates of trapping and release of charges. A theoretical relationship is derived for the change in carrier concentration as a function of neutron fluence and doping level. A linear relationship between neutron fluence and Fermi level shift was found to be consistent with the observed changes in carrier concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349039
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  • 9
    Electronic Resource
    Electronic Resource
    Hydrodynamics of a topologically nontrivial metric (1986)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 27 (1986), S. 2706-2708 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The curvature and Einstein tensor are computed for a metric having one or more kinks (solitons) present. It is pointed out that the components of the fluid velocity four-vector can be identified in a natural way with certain parameters present in the metric. Making this identification, a number of hydrodynamical quantities are computed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.527290
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  • 10
    Electronic Resource
    Electronic Resource
    Exact solutions of the Einstein field equations for a topologically nontrivial metric (1988)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 29 (1988), S. 179-181 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: Two exact solutions of the Einstein field equations are presented, each having a Finkelstein–Misner kink. The first of these has a perfect fluid interior and a vacuum exterior. The equation of state is ρ=−p=C (where C is a constant), which is the same as that found in inflationary models.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.528160
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